mercurial-scm/hg-stable: mercurial/posix.py annotate

annotate mercurial/posix.py @ 13280:6052bbc7aabd

reintroduces util.unlink, for POSIX and Windows. windows: factor it out of rename posix: add alias 'unlink' for os.unlink Note that this new unlink function now has different semantics than the unlink() we had before changeset 6bf39d88c857 ("rename util.unlink to unlinkpath").

author	Adrian Buehlmann <adrian@cadifra.com>
date	Tue, 11 Jan 2011 14:10:16 +0100
parents	e98bf6948092
children	f1fa8f481c7c

rev	line source
8226 8b2cd04a6e97 put license and copyright info into comment blocks Martin Geisler <mg@lazybytes.net> parents: 8225 diff changeset	1 # posix.py - Posix utility function implementations for Mercurial
8b2cd04a6e97 put license and copyright info into comment blocks Martin Geisler <mg@lazybytes.net> parents: 8225 diff changeset	2 #
8b2cd04a6e97 put license and copyright info into comment blocks Martin Geisler <mg@lazybytes.net> parents: 8225 diff changeset	3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
8b2cd04a6e97 put license and copyright info into comment blocks Martin Geisler <mg@lazybytes.net> parents: 8225 diff changeset	4 #
8b2cd04a6e97 put license and copyright info into comment blocks Martin Geisler <mg@lazybytes.net> parents: 8225 diff changeset	5 # This software may be used and distributed according to the terms of the
10263 25e572394f5c Update license to GPLv2+ Matt Mackall <mpm@selenic.com> parents: 10218 diff changeset	6 # GNU General Public License version 2 or any later version.
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	7
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	8 from i18n import _
8312 b87a50b7125c separate import lines from mercurial and general python modules Simon Heimberg <simohe@besonet.ch> parents: 8226 diff changeset	9 import osutil
10757 ab3782458827 posix: move a global fcntl import to keep it from breaking jython Ronny Pfannschmidt <Ronny.Pfannschmidt@gmx.de> parents: 10264 diff changeset	10 import os, sys, errno, stat, getpass, pwd, grp
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	11
9031 3b76321aa0de compat: use open() instead of file() everywhere Alejandro Santos <alejolp@alejolp.com> parents: 8761 diff changeset	12 posixfile = open
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	13 nulldev = '/dev/null'
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	14 normpath = os.path.normpath
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	15 samestat = os.path.samestat
13280 6052bbc7aabd reintroduces util.unlink, for POSIX and Windows. Adrian Buehlmann <adrian@cadifra.com> parents: 13007 diff changeset	16 unlink = os.unlink
9549 8b8920209317 util: move rename into posix.py and windows.py Adrian Buehlmann <adrian@cadifra.com> parents: 9517 diff changeset	17 rename = os.rename
8614 573734e7e6d0 cmdutils: Take over glob expansion duties from util Matt Mackall <mpm@selenic.com> parents: 8312 diff changeset	18 expandglobs = False
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	19
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	20 umask = os.umask(0)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	21 os.umask(umask)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	22
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	23 def openhardlinks():
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	24 '''return true if it is safe to hold open file handles to hardlinks'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	25 return True
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	26
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	27 def rcfiles(path):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	28 rcs = [os.path.join(path, 'hgrc')]
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	29 rcdir = os.path.join(path, 'hgrc.d')
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	30 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	31 rcs.extend([os.path.join(rcdir, f)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	32 for f, kind in osutil.listdir(rcdir)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	33 if f.endswith(".rc")])
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	34 except OSError:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	35 pass
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	36 return rcs
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	37
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	38 def system_rcpath():
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	39 path = []
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	40 # old mod_python does not set sys.argv
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	41 if len(getattr(sys, 'argv', [])) > 0:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	42 path.extend(rcfiles(os.path.dirname(sys.argv[0]) +
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	43 '/../etc/mercurial'))
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	44 path.extend(rcfiles('/etc/mercurial'))
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	45 return path
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	46
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	47 def user_rcpath():
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	48 return [os.path.expanduser('~/.hgrc')]
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	49
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	50 def parse_patch_output(output_line):
8761 0289f384e1e5 Generally replace "file name" with "filename" in help and comments. timeless <timeless@gmail.com> parents: 8657 diff changeset	51 """parses the output produced by patch and returns the filename"""
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	52 pf = output_line[14:]
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	53 if os.sys.platform == 'OpenVMS':
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	54 if pf[0] == '`':
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	55 pf = pf[1:-1] # Remove the quotes
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	56 else:
8219 21cf74ff2deb whitespace cleanup Peter Arrenbrecht <peter.arrenbrecht@gmail.com> parents: 7943 diff changeset	57 if pf.startswith("'") and pf.endswith("'") and " " in pf:
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	58 pf = pf[1:-1] # Remove the quotes
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	59 return pf
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	60
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	61 def sshargs(sshcmd, host, user, port):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	62 '''Build argument list for ssh'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	63 args = user and ("%s@%s" % (user, host)) or host
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	64 return port and ("%s -p %s" % (args, port)) or args
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	65
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	66 def is_exec(f):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	67 """check whether a file is executable"""
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	68 return (os.lstat(f).st_mode & 0100 != 0)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	69
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	70 def set_flags(f, l, x):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	71 s = os.lstat(f).st_mode
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	72 if l:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	73 if not stat.S_ISLNK(s):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	74 # switch file to link
9031 3b76321aa0de compat: use open() instead of file() everywhere Alejandro Santos <alejolp@alejolp.com> parents: 8761 diff changeset	75 data = open(f).read()
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	76 os.unlink(f)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	77 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	78 os.symlink(data, f)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	79 except:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	80 # failed to make a link, rewrite file
9031 3b76321aa0de compat: use open() instead of file() everywhere Alejandro Santos <alejolp@alejolp.com> parents: 8761 diff changeset	81 open(f, "w").write(data)
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	82 # no chmod needed at this point
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	83 return
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	84 if stat.S_ISLNK(s):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	85 # switch link to file
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	86 data = os.readlink(f)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	87 os.unlink(f)
9031 3b76321aa0de compat: use open() instead of file() everywhere Alejandro Santos <alejolp@alejolp.com> parents: 8761 diff changeset	88 open(f, "w").write(data)
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	89 s = 0666 & ~umask # avoid restatting for chmod
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	90
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	91 sx = s & 0100
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	92 if x and not sx:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	93 # Turn on +x for every +r bit when making a file executable
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	94 # and obey umask.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	95 os.chmod(f, s \| (s & 0444) >> 2 & ~umask)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	96 elif not x and sx:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	97 # Turn off all +x bits
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	98 os.chmod(f, s & 0666)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	99
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	100 def set_binary(fd):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	101 pass
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	102
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	103 def pconvert(path):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	104 return path
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	105
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	106 def localpath(path):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	107 return path
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	108
10218 750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	109 def samefile(fpath1, fpath2):
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	110 """Returns whether path1 and path2 refer to the same file. This is only
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	111 guaranteed to work for files, not directories."""
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	112 return os.path.samefile(fpath1, fpath2)
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	113
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	114 def samedevice(fpath1, fpath2):
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	115 """Returns whether fpath1 and fpath2 are on the same device. This is only
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	116 guaranteed to work for files, not directories."""
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	117 st1 = os.lstat(fpath1)
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	118 st2 = os.lstat(fpath2)
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	119 return st1.st_dev == st2.st_dev
750b7a4f01f6 Add support for relinking on Windows. Siddharth Agarwal <sid.bugzilla@gmail.com> parents: 9549 diff changeset	120
9238 40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	121 if sys.platform == 'darwin':
10757 ab3782458827 posix: move a global fcntl import to keep it from breaking jython Ronny Pfannschmidt <Ronny.Pfannschmidt@gmx.de> parents: 10264 diff changeset	122 import fcntl # only needed on darwin, missing on jython
9238 40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	123 def realpath(path):
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	124 '''
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	125 Returns the true, canonical file system path equivalent to the given
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	126 path.
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	127
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	128 Equivalent means, in this case, resulting in the same, unique
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	129 file system link to the path. Every file system entry, whether a file,
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	130 directory, hard link or symbolic link or special, will have a single
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	131 path preferred by the system, but may allow multiple, differing path
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	132 lookups to point to it.
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	133
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	134 Most regular UNIX file systems only allow a file system entry to be
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	135 looked up by its distinct path. Obviously, this does not apply to case
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	136 insensitive file systems, whether case preserving or not. The most
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	137 complex issue to deal with is file systems transparently reencoding the
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	138 path, such as the non-standard Unicode normalisation required for HFS+
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	139 and HFSX.
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	140 '''
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	141 # Constants copied from /usr/include/sys/fcntl.h
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	142 F_GETPATH = 50
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	143 O_SYMLINK = 0x200000
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	144
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	145 try:
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	146 fd = os.open(path, O_SYMLINK)
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	147 except OSError, err:
13007 e98bf6948092 posix: remove is-comparison between integers Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 12689 diff changeset	148 if err.errno == errno.ENOENT:
9238 40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	149 return path
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	150 raise
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	151
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	152 try:
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	153 return fcntl.fcntl(fd, F_GETPATH, '\0' * 1024).rstrip('\0')
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	154 finally:
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	155 os.close(fd)
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	156 else:
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	157 # Fallback to the likely inadequate Python builtin function.
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	158 realpath = os.path.realpath
40196d036a71 util: add realpath() for getting the 'true' path. Dan Villiom Podlaski Christiansen <danchr@gmail.com> parents: 9031 diff changeset	159
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	160 def shellquote(s):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	161 if os.sys.platform == 'OpenVMS':
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	162 return '"%s"' % s
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	163 else:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	164 return "'%s'" % s.replace("'", "'\\''")
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	165
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	166 def quotecommand(cmd):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	167 return cmd
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	168
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	169 def popen(command, mode='r'):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	170 return os.popen(command, mode)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	171
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	172 def testpid(pid):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	173 '''return False if pid dead, True if running or not sure'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	174 if os.sys.platform == 'OpenVMS':
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	175 return True
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	176 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	177 os.kill(pid, 0)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	178 return True
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	179 except OSError, inst:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	180 return inst.errno != errno.ESRCH
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	181
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	182 def explain_exit(code):
9517 4368f582c806 util.system: Use subprocess instead of os.system Mads Kiilerich <mads@kiilerich.com> parents: 9238 diff changeset	183 """return a 2-tuple (desc, code) describing a subprocess status
4368f582c806 util.system: Use subprocess instead of os.system Mads Kiilerich <mads@kiilerich.com> parents: 9238 diff changeset	184 (codes from kill are negative - not os.system/wait encoding)"""
4368f582c806 util.system: Use subprocess instead of os.system Mads Kiilerich <mads@kiilerich.com> parents: 9238 diff changeset	185 if code >= 0:
4368f582c806 util.system: Use subprocess instead of os.system Mads Kiilerich <mads@kiilerich.com> parents: 9238 diff changeset	186 return _("exited with status %d") % code, code
4368f582c806 util.system: Use subprocess instead of os.system Mads Kiilerich <mads@kiilerich.com> parents: 9238 diff changeset	187 return _("killed by signal %d") % -code, -code
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	188
8657 3fa92c618624 posix: do not use fstat in isowner Martin Geisler <mg@lazybytes.net> parents: 8614 diff changeset	189 def isowner(st):
3fa92c618624 posix: do not use fstat in isowner Martin Geisler <mg@lazybytes.net> parents: 8614 diff changeset	190 """Return True if the stat object st is from the current user."""
7890 e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	191 return st.st_uid == os.getuid()
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	192
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	193 def find_exe(command):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	194 '''Find executable for command searching like which does.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	195 If command is a basename then PATH is searched for command.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	196 PATH isn't searched if command is an absolute or relative path.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	197 If command isn't found None is returned.'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	198 if sys.platform == 'OpenVMS':
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	199 return command
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	200
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	201 def findexisting(executable):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	202 'Will return executable if existing file'
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	203 if os.path.exists(executable):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	204 return executable
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	205 return None
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	206
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	207 if os.sep in command:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	208 return findexisting(command)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	209
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	210 for path in os.environ.get('PATH', '').split(os.pathsep):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	211 executable = findexisting(os.path.join(path, command))
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	212 if executable is not None:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	213 return executable
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	214 return None
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	215
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	216 def set_signal_handler():
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	217 pass
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	218
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	219 def statfiles(files):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	220 'Stat each file in files and yield stat or None if file does not exist.'
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	221 lstat = os.lstat
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	222 for nf in files:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	223 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	224 st = lstat(nf)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	225 except OSError, err:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	226 if err.errno not in (errno.ENOENT, errno.ENOTDIR):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	227 raise
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	228 st = None
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	229 yield st
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	230
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	231 def getuser():
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	232 '''return name of current user'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	233 return getpass.getuser()
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	234
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	235 def expand_glob(pats):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	236 '''On Windows, expand the implicit globs in a list of patterns'''
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	237 return list(pats)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	238
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	239 def username(uid=None):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	240 """Return the name of the user with the given uid.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	241
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	242 If uid is None, return the name of the current user."""
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	243
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	244 if uid is None:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	245 uid = os.getuid()
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	246 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	247 return pwd.getpwuid(uid)[0]
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	248 except KeyError:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	249 return str(uid)
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	250
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	251 def groupname(gid=None):
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	252 """Return the name of the group with the given gid.
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	253
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	254 If gid is None, return the name of the current group."""
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	255
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	256 if gid is None:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	257 gid = os.getgid()
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	258 try:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	259 return grp.getgrgid(gid)[0]
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	260 except KeyError:
e710f0f592b2 util: split out posix, windows, and win32 modules Matt Mackall <mpm@selenic.com> parents: diff changeset	261 return str(gid)
10237 2f7a38f336f4 serve: add and use portable spawnvp replacement Patrick Mezard <pmezard@gmail.com> parents: 10218 diff changeset	262
11138 99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	263 def groupmembers(name):
99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	264 """Return the list of members of the group with the given
99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	265 name, KeyError if the group does not exist.
99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	266 """
99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	267 return list(grp.getgrnam(name).gr_mem)
99eee847beaa acl: grp module is not available on windows Patrick Mezard <pmezard@gmail.com> parents: 11011 diff changeset	268
10237 2f7a38f336f4 serve: add and use portable spawnvp replacement Patrick Mezard <pmezard@gmail.com> parents: 10218 diff changeset	269 def spawndetached(args):
2f7a38f336f4 serve: add and use portable spawnvp replacement Patrick Mezard <pmezard@gmail.com> parents: 10218 diff changeset	270 return os.spawnvp(os.P_NOWAIT \| getattr(os, 'P_DETACH', 0),
2f7a38f336f4 serve: add and use portable spawnvp replacement Patrick Mezard <pmezard@gmail.com> parents: 10218 diff changeset	271 args[0], args)
2f7a38f336f4 serve: add and use portable spawnvp replacement Patrick Mezard <pmezard@gmail.com> parents: 10218 diff changeset	272
10239 8e4be44a676f Find right hg command for detached process Patrick Mezard <pmezard@gmail.com> parents: 10237 diff changeset	273 def gethgcmd():
8e4be44a676f Find right hg command for detached process Patrick Mezard <pmezard@gmail.com> parents: 10237 diff changeset	274 return sys.argv[:1]
11010 18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	275
12689 c52c629ce19e termwidth: move to ui.ui from util Augie Fackler <durin42@gmail.com> parents: 11138 diff changeset	276 def termwidth():
11010 18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	277 try:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	278 import termios, array, fcntl
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	279 for dev in (sys.stderr, sys.stdout, sys.stdin):
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	280 try:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	281 try:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	282 fd = dev.fileno()
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	283 except AttributeError:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	284 continue
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	285 if not os.isatty(fd):
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	286 continue
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	287 arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	288 return array.array('h', arri)[1]
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	289 except ValueError:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	290 pass
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	291 except IOError, e:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	292 if e[0] == errno.EINVAL:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	293 pass
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	294 else:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	295 raise
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	296 except ImportError:
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	297 pass
18e81d42ee5c util: fix default termwidth() under Windows Patrick Mezard <pmezard@gmail.com> parents: 10264 diff changeset	298 return 80

Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/posix.py @ 13280:6052bbc7aabd